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Finding the Third Proportional to 13,578 and 29,222

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Solution

The third proportional to 13,578 and 29,222 is: 62,890.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578 : 29,222 = 29,222 : x
  2. Step 2: Convert to fraction form
    13,578/29,222 = 29,222/x
  3. Step 3: Cross multiply
    13,578x = 29,222 × 29,222
  4. Step 4: Simplify right side
    13,578x = 853,925,284
  5. Step 5: Solve for x
    x = 853,925,284/13,578
  6. Step 6: Final answer
    x = 62,890.36

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.